Download - Compilation of Tables and Constants
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COMPILATION OF TABLES AND CONSTANTS
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Resistivities of common materials and alloys
Material ρ(10-8 Ω-m)Aluminum (Al) 2.6Brass 6Carbon (C) 350Constantan (60% Cu and 40% Ni) 50Copper (Cu) 1.7Manganin(84% Cu, 12% Mn, 4% Ni)
44
Nichrome 100Silver (Mg) 1.5Tungsten (W) 5.6
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Inferred Absolute zero temperatures
Material Inferred Absolute Zero (oC)Aluminum -236Copper, annealed -234.5Copper, hard-drawn -242Iron -180Nickel -147Silver -243Steel,soft -218Tin -218Tungsten -202Zinc -250
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Temperature-resistance coefficients
Material α20
Nickel 0.006
Iron 0.0055
Tungsten 0.0045
Copper, annealed
0.00393
Aluminum 0.0039
Lead 0.0039
Copper, hard-drawn
0.00382
Silver 0.0038
Zinc 0.0037
Material α20
Gold, pure 0.0034
Platinum 0.003
Brass 0.002
Nichrome 0.00044
German Silver
0.0004
Nichrome II 0.00016
Manganin 0.00003
Advance 0.000018
Constantan 0.000008
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Resistor color coding
Color 1st Digit 2nd Digit Multiplier ToleranceBlack 0 0 100 20Brown 1 1 101 1Red 2 2 102 2Orange 3 3 103 3Yellow 4 4 104 GMVGreen 5 5 105 5Blue 6 6 106 -Violet 7 7 107 -Gray 8 8 108 -White 9 9 109 -Gold - - 0.1 5Silver - - 0.01 10
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Relative permittivities or dielectric constants
Dielectric Material r (Average Value)Vacuum 1.0000Air 1.0006Teflon 2.0Paper, paraffined 2.5Rubber 3.0Transformer oil 4.0Mica 5.0Porcelain 6.0Bakelite 7.0Glass 7.5Distiled water 80.0Barium-strontium tantanice (ceramic)
7500.0
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Reciprocals
Resistance (Ω) Conductance (S)Reactance (Ω) Susceptance (B)Impedance (Z) Admittance (Y)Capacitance (F) Elastance (Daraf)
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BJT Configurations
Configuration Attributes
Common BaseUsed for impedance matching application especially for low to high impedance conversion
Common Emitter The most used configuration for amplifier application
Common Collector (Emitter Follower)
Also for impedance matching application useful for hight to low impedance conversion.Most common for impedance matching
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Types of Biasing
Bias Configuration Attributes
Fixed-biasHas the greatest power gain but the most unstable type of biasing configuration.
Voltage Divider BiasConsidered the most stable of all the biasing configurations but requires more resistors than any other biasing
Emitter-Stabilized More stable than fixed-bias but with a smaller power gain
Voltage FeedbackHas the advantage of requiring fewer resistors compared to voltage divider bias without reducing the stability.
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Classes of Amplifier
Amplifier Class Operation Description
Class A
Output signal is 100% replica of the input signalGood fidelity but low efficiency25%50% (transfomer coupled)
Class ABoperates with a small forward bias of the transistor so that some collector current flows at all times25%(50%) and 78.5%
Class Bused either where the signal needs to be cut in half 78.5%
Class Cbiased so that current is non zero for less than one-half cycle.
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Gates of Integrated circuits
Integration GatesVery large-scale integration (VLSI)
More than 1000 gates
Large-scale integration (LSI) More then 100 gatesMedium-scale integration (MSI) 10 to 100 gatesSmall-scale integration (SSI) Up to 9 gates
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Temperature range of integrated circuits
Temperature Range Application-550C to 1250C Military and Space00C to 700C Commercial and Industrial
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Modulation types
Type AttributeA3E Double sideband full carrierR3E Single sideband reduced carrierJ3E Single sideband suppressed
carrierB8E Independent sideband C3F Vestigial sidebandH3E Single sideband full carrierG3E Phase modulation